JP3022936B2 - Inline wire drawing machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a processing station, such as a cold header, which unwinds a wire from a wire coil, reduces the diameter of the wire, and places the reduced diameter wire downstream of a wire drawing machine. The present invention relates to an in-line wire drawing machine supplied to a company.

[0002]

BACKGROUND OF THE INVENTION An inline wire drawing machine of this general type is disclosed in U.S. Pat.
No. 9,403.

[0003]

In such an in-line wire drawing machine, first, a wire is wound in a coil shape and supported on a rotatable turntable. The wire passes from this coil through a drawing die and is then wound several times on a powered rotating drum or capstan. As the capstan rotates, the capstan pulls the wire out of the drawing die and reduces its wire diameter, the reduced diameter wire being wound first on one end of the capstan and then from the other end of the capstan. Unraveled,
Supplied to the processing station. As the wire is pulled by the capstan, the turntable rotates, allowing the wire to unwind from the coil and proceed to the drawing die. Conventionally, the turntable is mounted on a base supported on the floor, and is disposed at a position near the height of the floor behind the rear end or upstream end of the main frame supporting the capstan. As a result, the overall length of the processing machine is relatively long and occupies considerable floor space. When several processing machines are installed in a factory, it is economically disadvantageous that the whole floor space occupied by the turntable arranged rearward is large.

[0004]

SUMMARY OF THE INVENTION An overall object of the present invention is to reduce the overall length of an in-line wire drawing apparatus,
The goal is to reduce the floor space required by the device.

It is a more specific object of the present invention to provide a new and improved in-line wire drawing machine having an overhead turntable disposed above the capstan to free and save space behind the main frame of the capstan. Is to achieve the above object.

Yet another object of the present invention is to reliably and trouble-free guide the wire from the overhead capstan to the rear and to the drawing die.

Another object of the present invention is to provide a novel mechanism for detecting the entanglement of the wire of the coil and automatically stopping the wire processing machine when the wire is caught and cannot be unwound in a free state. It is.

[0008]

BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects and advantages of the present invention will become more apparent by referring to the following detailed description in conjunction with the accompanying drawings.

For convenience of explanation, the present invention is shown in the drawings in a form embodied as an in-line wire drawing machine 10 for reducing the diameter of a wire 11 and supplying the wire 11 to a working machine 12 shown as a cold header. It is. Many features of the processing machine of the present invention are similar to the processing machine disclosed in the above-mentioned U.S. Patent to Alcock et al. And will only be briefly described.

The processing machine 10 includes a lower substrate 14, an upright side wall 1.
5, comprising a main support or frame 13 defined by upright columns 17 and a horizontal top plate 19 (FIG. 4). The drum or capstan 20 is supported on the frame 13 so as to be rotatable about an axis A (FIG. 1) that is substantially horizontal and extends in the lateral direction. The rotation of the capstan 20 is performed by an electric motor 24 (FIG. 3) via a variable speed drive mechanism 25.

A die box 27 (FIGS. 1, 6 and 7) for supporting a wire drawing die 28 is attached to one side wall 15 of the frame 13 and arranged at the rear of the capstan 20. Wire 11 from coil 30 (FIG. 1,
3 and 4) proceed through a die 28 and are wrapped around the capstan 20 several times. Existing wire from the capstan is formed in a loop by a compensating arm 31 (FIG. 1) and then proceeds to an intermittently rotatable feed roll 32 associated with the cold header 12.

When the capstan 20 rotates, the coil 3
The wire 11 from 0 is pulled out by the capstan 20 through the processing die 28 and the diameter thereof is reduced. The reduced diameter wire is wound around a capstan 20 and then exits the capstan 20 and is fed to a cold header 12. The compensating arm 31 functions in a conventional manner to match the rotational speed of the capstan 20 to the cold header demand.

In a typical wire working process, several wire drawing machines 10 and machines 12 are installed in a single factory and occupy a very large floor space.
According to the invention, by supporting the wire coil 30 on an overhead carousel 35 located above the machine frame 13, significant floor space is saved. Thus, the coil 30 and the turntable 35 utilize the otherwise unused space of the frame, freeing the floor space behind the wire drawing machine 10 and requiring the wire drawing machine 10. Reduce floor space.

More specifically, the turntable 35 includes a circular substrate 36 disposed above and parallel to the top plate 19 of the frame 13. The substrate 36
A central hub 38 (FIG. 5) is rotatably supported about a vertical shaft 39 fixed to the top plate 19 and projecting upward from the top plate 19.
A bearing 40 is provided between the hub 9 and the hub 38.
In this special case, the shaft 39 is arranged in the front-rear direction, so that the axis B (FIGS. 1 and 5) of the shaft 39 intersects the axis A of the capstan 20. But,
It is not essential that axis B crosses axis A ,
In practice, usually, the axis B of the turntable 35 arranged in the longitudinal direction, as a result, between the two vertical planes said axis B is extended tangentially state with respect to the front and rear peripheral surface of the capstan 20 By positioning, the advantages of the invention can be realized. The axis B may be laterally located at the lateral center of the top plate 19 or, as in the preferred embodiment, somewhat offset from the lateral center toward the capstan, as shown in FIG. Can be done. FIG.
As shown most clearly in FIG. 1, the turntable 35 includes a circular basket-like structure 41 attached to and extending upward from the periphery of the substrate 36. A pair of inverted U-shaped rods 42 extend upward from the central portion of the substrate 36,
Define the mandrel of the coil 30. When placed on the turntable 35, the coil expands and contracts above the rod 42, and the lower end portion is surrounded by the basket 41.
When the wire 11 is squeezed by the capstan 20 through the die 28, the wire is pulled out from the upper end of the coil,
The turntable 35 rotates about a shaft 39 so that the wire is unwound uniformly from the coil.
The turntable 35 is not a power drive type but a free-rotation type, and rotates by a pulling force applied to the wire from the capstan. When the motor 24 is deactivated and the capstan is stopped, the air cylinder 43 (FIG. 1) of the top plate 19 is pressurized. The rod of the air cylinder 43 extends upward, frictionally engages the bottom of the substrate 36, applies a brake to the turntable 35 and stops, preventing the coil 30 from unwinding in an uncontrolled state. .

The wire 11 is moved downward and rearward, and then the coil 3
Means are provided for guiding the die 28 from the upper wrap of zero. Here, these guiding means are a pair of grooved rollers 4 arranged in a vertically superposed relationship at the rear of the wire coil above the upper winding portion of the coil.
5 (FIGS. 1 and 3). These grooved rollers 45 are rotatable about a horizontal axis parallel to the axis A of the capstan 20 by a vertical column 46 fixed to the rear end of the top plate 19 of the frame 13 and extending upward from the rear end. It is supported to be. The wire 11 from the upper wrap of the wire coil 30 travels rearward between the rollers 45 and forms a loop at the lower rear of the column. Two vertically spaced U-shaped restraining bars 48 extend rearward from the post and control the trailing end of the wire when the wire coil 30 is empty.

It is desirable to provide a means for detecting the entanglement of the wire 11 and automatically stopping the wire drawing machine 10 when the wire 11 is hooked and cannot be unwound from the wire coil 30 freely. In the case of the present invention, these stopping means comprise a grooved roller 50 (FIGS. 6 and 7) rotatably supported by a horizontal auxiliary shaft 51 on the rear end of the member or plate 53. The wire 11 from the guide roller 45 forms a loop below the roller 50 and is restrained on the plate 53 by fingers 55 extending in the lateral direction. After being driven by the rollers 50, the wire 11 travels between the two upper straightening rollers 57 and the lower straightening rollers 58, and then to the die 28.

According to the invention, the front end of the plate 53 supports the plate 53 and is secured to the fixed ear 5 of the die box 27 by laterally extending pivot bolts 60 which pivot upward and downward.
9 (FIG. 7). A spring 62 functions between the extension 64 of the ear 59 and the fixing bolt 65 of the plate 53,
3 is biased and pivoted downward about pivot bolt 60, and spring 62 normally holds plate 53 in the position shown in FIG. When the plate 53 is pivoted upward at a predetermined angle, the upper edge of the plate 53 is engaged with the actuator 66 of the limit switch 67 of the extension 64 to open the switch 67 and to supply electricity to the processing machine 10. Cut off.

Normally, the wire 11 is
It is fed out uniformly from zero, so that the plate 53 remains in the position shown in FIG. When the wire 11 of the coil is entangled, or when the wire 11 is not smoothly fed out of the coil due to a large hump of the wire 11,
The wire 11 is hooked, and an upward force is applied to the wire portion between the rollers 45 and 50. Such a force acts on the roller 50 to pivot the plate 53 upward,
The limit switch 67 is operated. As a result, the drive motor 24 of the capstan 20 becomes inoperative, and the processing machine 10 is stopped until the problem is corrected. In this way, the operation of the wire processing machine is interrupted to prevent the capstan from aggravating the entanglement or pulling out the hooked wire and damaging the wire 11. When the switch 67 is connected, the cold header 12
Is also stopped.

From the above description, it can be seen that the present invention provides a new and improved floor space that is significantly reduced by mounting the turntable 35 above the capstan 20 rather than on the floor behind the wire working machine. It will be apparent that this provides an in-line wire drawing machine 10 that has been used. Despite the turntable 35 being in the overhead position, the wire catch detectors 50, 53 and 67 ensure that the wire processing machine is inoperative when the wire is entangled, while the guide roller 45 controls the wire 11 in the controlled state. To be supplied to the processing die 28.

[Brief description of the drawings]

FIG. 1 is a side view of a new and improved in-line wire drawing machine embodying the unique features of the present invention.

FIG. 2 is a plan view of the wire drawing machine taken along line 2-2 in FIG.

FIG. 3 is a rear view of the wire drawing machine taken along line 3-3 in FIG. 2;

FIG. 4 is an exploded perspective view of a wire coil, a turntable, and a processing machine frame.

FIG. 5 is an enlarged partial sectional view taken along a line 5-5 in FIG. 3;

FIG. 6 is an enlarged plan view of the component taken along line 6-6 of FIG. 1 with some parts cut away and shown in cross section.

FIG. 7 is a side view of the components shown in FIG. 6;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 Wire drawing machine 11 Wire 12 Processing machine (cold header) 13 Frame 14 Lower substrate 15 Side wall 17 Column 19 Top plate 20 Capstan 24 Electric motor 25 Variable speed drive mechanism 27 Die box 28 Die 30 Coil 31 Compensation arm 32 Feed Roll 35 Overhead turntable 36 Circular substrate 38 Hub 39 Shaft 40 Bearing 41 Basket-like structure 42 Rod 43 Air cylinder 45 Roller 48 Restraining bar

──────────────────────────────────────────────────の Continued on the front page (72) Inventor Richard A. Alcock, Worbles Way, Roscoe, Illinois, United States 11933 (72) Inventor Michael Jay Yankaitis, Roscoe, Illinois, United States Harrison 5851 (56) References JP-A-51-28565 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) B21C 1/02 B21C 1/14 B21C 47/18 B21C 47/34

Claims (7)

(57) [Claims] 1. An in-line wire drawing machine for unwinding a wire from a wire coil, reducing the diameter of the wire, and supplying the reduced-diameter wire to a processing station disposed downstream of the processing machine. A capstan rotatably mounted on the support about a substantially horizontal axis, power actuation means for rotating the capstan about the axis, upstream of the capstan mounted on the support. A wire drawing die disposed on the wire, the wire from the coil proceeds through the die and is wound around the capstan, whereby the capstan rotates to form the wire into the processing die. Through the drawing, the wire is supplied from the capstan, and at the processing station Allowing the capstan to be consumed, wherein the capstan is disposed between first and second vertical surfaces extending tangentially to the capstan, the first vertical surface proximate the die, and the second A vertical plane remote from the die, further supporting the wire coil, wherein the coil unwinds in response to rotation of the capstan;
A wire drawing machine having a supporting means for supplying a wire to the die, wherein the supporting means is disposed on an upper side of an upper side of the capstan, a turntable, and the die and the second vertical surface. Means for attaching the turntable to the support so as to be rotatable about a substantially vertical axis disposed therebetween, and when the wire is unwound from the coil, the wire is transferred from the coil on the turntable to the processing die. An inline wire drawing machine, comprising: a guide means for guiding. 2. The inline wire drawing machine according to claim 1, wherein a substantially vertical axis of said turntable is disposed between said first and second vertical surfaces. Processing machine. 3. The inline wire drawing machine according to claim 2, wherein a substantially vertical axis of the turntable intersects a substantially horizontal axis of the capstan. 4. The inline wire drawing machine according to claim 1, wherein the guide means is rotatable about a horizontal axis extending in parallel with the axis of the capstan and at a position higher than a turntable. An in-line wire drawing machine comprising a pair of vertically spaced cooperating rollers disposed downstream of the turntable. 5. The in-line wire drawing machine according to claim 1, wherein the in-line wire drawing machine is disposed upstream of the processing die, detects the entanglement of the wire, and responds to the detection of the entanglement. An inline wire drawing machine further comprising means for automatically disabling the rotating means. 6. The inline wire drawing machine according to claim 5, wherein the entanglement detecting means is pivotally mounted on the support up and down.
Means for biasing the member downward, and roller means provided on the member for engaging the wire, the member pivoting upward in response to the roller means receiving an upward force. An inline wire drawing machine comprising: roller means for causing the capstan to rotate; and means for disabling means for rotating the capstan when the member is pivoted upward by a predetermined angle. 7. The inline wire drawing machine according to claim 1, wherein the turntable is mounted so as to be freely rotatable about the substantially vertical axis, and a braking force is selectively applied to the turntable. An in-line wire drawing machine, comprising: